Problem by meshing Knee Modell Stl File by with SimLab

Hello everyone.

I got a problem with meshing a Knee Modell stl file.

Surface Mesh is running, but when i do tetramesh it get an error: Body 1 has overlapp edges.

I follow instructions like here: https://community.altair.com/community?id=community_question&sys_id=98a6c47a1b2bd0908017dc61ec4bcb3c

but it doesn't work.

Have anyone of you an idea, what is to do? I also work with a Meshmixer tool to make the surface smoother, but it produce the same error.

Best regards,

Robin

EUP06231_cortical_cut_reduced.stl

EUP06231_trabecular_cut_reduced.stl

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AlessioLibrandi

Please use the mesh check INTERSECTION to find the errors in the mesh

They are just 3 or 4 problems. Like this one:

I suggest then just to delete the error elements. Select and delete.

Then, detect the holes (created by the deleting) with Free edges tool:

And fill them up, for example using Create Element Option:

Once Edge- and intersection Check gives no error you will be able to do your tet mesh. I did it for one of your examples: tetmesh is attached (as GDA to be imported into SL).

Thanks, Alessio Librandi - SimLab Global Tech Team

Curt_Cut_Tetmesh.gda

Robin Müller

Hi Alessio,

thank you so much for your support.

I follow your instruction step by step for the trab file and find the errors with intersection and delete them. But the problem is that i cant find any edges after that, and the mesh will not be runnin. I cant see the elems inside the structure, so i cant create new one.

Do you have any idea of my problem?

Thank you so much.

Best regards,

Robin

Robin Müller

Now it works. I have reinstalled SimLab and it looks like it works. Thank you so much.

Robin Müller

Hi.

I got one more question. There is a problem when i want to get the results it gives me a fail message.

Do anyone know what i do wrong?

Best,

Robin

Fail1.jpg

Fail2.jpg

Model.zip